I like your idea. I don't think the killing is going to stop until one side is defeated. Right now, the Sunnis and the Shiites are settling scores and it will continue until one side gives up.
No,
you don't get it, trust me when I say its still pretty much only the Militias like the Madhi Army involved in the killing. When the Iraqi people really get into it (which would mean a real civil war) if they ever do I will be the first to tell you.